d1ffvc2    d1ffvf2    d1ffuc2    d1ffuf2 
d1ffvc2           0.0        0.0        0.0        0.0 
d1ffvf2           0.0        0.0        0.0        0.0 
d1ffuc2           0.0        0.0        0.0        0.0 
d1ffuf2           0.0        0.0        0.0        0.0